Electric energy management method and device, controller and storage medium

Abstract

The invention relates to an electric energy management method and device, a controller and a storage medium. The current electric energy generated by a new energy system in an energy system is acquired; under the condition that the current electric energy exceeds a first preset electric energy threshold value or the fluctuation amplitude of the current electric energy exceeds a second preset electric energy threshold value, a reversible solid oxide battery R-SOC system in the energy system is controlled to be switched to an electrolysis mode; and under the condition that the current electric energy does not exceed the third preset electric energy threshold value, an R-SOC system in the energy system is controlled to be switched to a power generation mode. According to the scheme, under the condition that hydrogen stored in the hydrogen storage system is insufficient, biomass energy in the biomass energy system can be used for generating electricity, so that the electricity utilization requirement of the electricity utilization end is met; and larger-scale hydrogen storage equipment and electrolysis equipment do not need to be arranged, so that the cost of the hydrogen storage equipment and the electrolysis equipment is reduced.

Description

Technical Field

[0001] The present application relates to the field of energy management technology, and in particular to an electric energy management method, device, controller and storage medium. Background Art

[0002] In scenarios where clean energy is used for power generation, for example, wind and solar energy are used for power generation, since wind and solar energy are affected by the weather, wind and solar power generation are intermittent and volatile, resulting in unstable power generation.

[0003] In traditional technology, reversible solid oxide cell (R-SOC) technology is usually used to avoid the unstable power generation caused by the intermittent and volatile nature of wind and solar power generation. For example, when there is excess power generation, the excess power is converted into hydrogen for storage; when the power generation is insufficient, R-SOC can use the stored hydrogen to generate electricity to meet the power demand of the power user.

[0004] However, in the case of continuous cloudy days, there may be a situation where the stored hydrogen is insufficient. In order to meet the electricity demand of the electricity users, it is usually necessary to set up larger-scale hydrogen storage equipment and electrolysis equipment to store enough hydrogen, which leads to the problem of high cost of hydrogen storage equipment and electrolysis equipment. Summary of the invention

[0005] Based on this, it is necessary to provide an electric energy management method, device, controller and storage medium to address the above technical problems, which can reduce the cost of hydrogen storage equipment and electrolysis equipment.

[0006] In a first aspect, the present application provides an electric energy management method, the method being applied to a controller in an energy system, the method comprising:

[0007] Acquire current electric energy generated by a new energy system in the energy system;

[0008] When the current electric energy exceeds a first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds a second preset electric energy threshold, controlling the reversible solid oxide battery R-SOC system in the energy system to switch to an electrolysis mode; and,

[0009] When the current electric energy does not exceed a third preset electric energy threshold, controlling the R-SOC system in the energy system to switch to a power generation mode;

[0010] The electrolysis mode is used to instruct the R-SOC system to use part of the electric energy exceeding the first preset electric energy threshold, or part of the electric energy exceeding the third preset electric energy threshold as electric energy to be electrolyzed, and convert the electric energy to be electrolyzed into hydrogen energy and store it in the hydrogen storage system of the energy system;

[0011] Wherein, the power generation mode is used to instruct the R-SOC system to use the hydrogen energy in the hydrogen storage system and / or the biomass energy in the biomass energy system in the energy system as energy to be converted, and use the energy to be converted to generate electricity; wherein, the third preset electric energy threshold is not greater than the first preset electric energy threshold.

[0012] In one of the embodiments, after controlling the R-SOC system in the energy system to switch to the power generation mode when the current electric energy does not exceed the third preset electric energy threshold, the method further includes:

[0013] Obtaining the current remaining hydrogen energy in the hydrogen storage system;

[0014] When the current remaining hydrogen energy is lower than a preset hydrogen energy threshold, the hydrogen energy in the hydrogen storage system and the biomass energy in the biomass energy system in the energy system are used as the energy to be converted;

[0015] When the current remaining hydrogen energy is not lower than a preset hydrogen energy threshold, the hydrogen energy in the hydrogen storage system is used as the energy to be converted.

[0016] In one embodiment, when the current electric energy exceeds a first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds a second preset electric energy threshold, controlling the reversible solid oxide battery R-SOC system in the energy system to switch to an electrolysis mode comprises:

[0017] When the current electric energy exceeds the first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, according to the electric energy carrying upper limit of the R-SOC system, the part of the electric energy exceeding the first preset electric energy threshold, or the part of the electric energy exceeding the second preset electric energy threshold, is divided into the electric energy to be stored and the electric energy to be electrolyzed;

[0018] storing the electric energy to be stored in the energy storage battery system in the energy system; and,

[0019] The R-SOC system in the energy system is controlled to switch to an electrolysis mode.

[0020] In one embodiment, according to the power carrying limit of the R-SOC system, the part of the power exceeding the first preset power threshold is divided into the power to be stored and the power to be electrolyzed, including:

[0021] Among the electric energy corresponding to the current electric energy exceeding the first preset electric energy threshold, the electric energy of the electric energy carrying upper limit of the R-SOC system is used as the electric energy to be electrolyzed; and

[0022] The electric energy other than the electric energy to be electrolyzed among the electric energy corresponding to the current electric energy and exceeding the first preset electric energy threshold is used as the electric energy to be stored.

[0023] In one embodiment, according to the power carrying limit of the R-SOC system, the part of the power exceeding the second preset power threshold is divided into the power to be stored and the power to be electrolyzed, including:

[0024] The electric energy of the electric energy carrying upper limit of the R-SOC system in the electric energy corresponding to the fluctuation amplitude of the current electric energy exceeding the second preset electric energy threshold is used as the electric energy to be electrolyzed; and

[0025] The electric energy other than the electric energy to be electrolyzed in the part of the electric energy whose fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold value is used as the electric energy to be stored.

[0026] In one embodiment, after controlling the reversible solid oxide battery R-SOC system in the energy system to switch to the electrolysis mode when the current electric energy exceeds the first preset electric energy threshold, the method further includes:

[0027] Controlling the photothermal system in the energy system to provide water vapor to the R-SOC system during the process of the R-SOC system using the energy to be converted to generate electricity;

[0028] Among them, the water vapor is the electrolysis raw material in the electrolysis process of the R-SOC system using the energy to be converted.

[0029] In one embodiment, the method further comprises:

[0030] Controlling the water supply system in the energy system to provide cooling water for the R-SOC system to cool the gas output by the R-SOC system;

[0031] The cooling water used to cool the gas output by the R-SOC system is transmitted to the user end of the energy system.

[0032] In a second aspect, the present application further provides an electric energy management device, the device being configured in a controller in an energy system, the device comprising:

[0033] An acquisition module, used for acquiring current electric energy generated by a new energy system in the energy system;

[0034] A first control module, used for controlling the reversible solid oxide battery R-SOC system in the energy system to switch to the electrolysis mode when the current electric energy exceeds the first preset electric energy threshold or the fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold; and used for controlling the R-SOC system in the energy system to switch to the power generation mode when the current electric energy does not exceed the third preset electric energy threshold;

[0035] The electrolysis mode is used to instruct the R-SOC system to use part of the electric energy exceeding the first preset electric energy threshold, or part of the electric energy exceeding the third preset electric energy threshold as electric energy to be electrolyzed, and convert the electric energy to be electrolyzed into hydrogen energy and store it in the hydrogen storage system of the energy system;

[0036] Wherein, the power generation mode is used to instruct the R-SOC system to use the hydrogen energy in the hydrogen storage system and / or the biomass energy in the biomass energy system in the energy system as energy to be converted, and use the energy to be converted to generate electricity; wherein, the third preset electric energy threshold is not greater than the first preset electric energy threshold.

[0037] In a third aspect, the present application further provides a controller, the controller comprising a memory and a processor, the memory storing a computer program, and the processor implementing the following steps when executing the computer program:

[0038] Acquire current electric energy generated by a new energy system in the energy system;

[0039] Acquire current electric energy generated by a new energy system in the energy system;

[0040] When the current electric energy exceeds a first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds a second preset electric energy threshold, controlling the reversible solid oxide battery R-SOC system in the energy system to switch to an electrolysis mode; and,

[0041] When the current electric energy does not exceed a third preset electric energy threshold, controlling the R-SOC system in the energy system to switch to a power generation mode;

[0042] The electrolysis mode is used to instruct the R-SOC system to use part of the electric energy exceeding the first preset electric energy threshold, or part of the electric energy exceeding the third preset electric energy threshold as electric energy to be electrolyzed, and convert the electric energy to be electrolyzed into hydrogen energy and store it in the hydrogen storage system of the energy system;

[0043] Wherein, the power generation mode is used to instruct the R-SOC system to use the hydrogen energy in the hydrogen storage system and / or the biomass energy in the biomass energy system in the energy system as energy to be converted, and use the energy to be converted to generate electricity; wherein, the third preset electric energy threshold is not greater than the first preset electric energy threshold.

[0044] In a fourth aspect, the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0045] Acquire current electric energy generated by a new energy system in the energy system;

[0046] When the current electric energy exceeds a first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds a second preset electric energy threshold, controlling the reversible solid oxide battery R-SOC system in the energy system to switch to an electrolysis mode; and,

[0047] When the current electric energy does not exceed a third preset electric energy threshold, controlling the R-SOC system in the energy system to switch to a power generation mode;

[0048] The electrolysis mode is used to instruct the R-SOC system to use part of the electric energy exceeding the first preset electric energy threshold, or part of the electric energy exceeding the third preset electric energy threshold as electric energy to be electrolyzed, and convert the electric energy to be electrolyzed into hydrogen energy and store it in the hydrogen storage system of the energy system;

[0049] Wherein, the power generation mode is used to instruct the R-SOC system to use the hydrogen energy in the hydrogen storage system and / or the biomass energy in the biomass energy system in the energy system as energy to be converted, and use the energy to be converted to generate electricity; wherein, the third preset electric energy threshold is not greater than the first preset electric energy threshold.

[0050] In a fifth aspect, the present application further provides a computer program product, the computer program product comprising a computer program, which implements the following steps when executed by a processor:

[0051] Acquire current electric energy generated by a new energy system in the energy system;

[0052] When the current electric energy exceeds a first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds a second preset electric energy threshold, controlling the reversible solid oxide battery R-SOC system in the energy system to switch to an electrolysis mode; and,

[0053] When the current electric energy does not exceed a third preset electric energy threshold, controlling the R-SOC system in the energy system to switch to a power generation mode;

[0054] The electrolysis mode is used to instruct the R-SOC system to use part of the electric energy exceeding the first preset electric energy threshold, or part of the electric energy exceeding the third preset electric energy threshold as electric energy to be electrolyzed, and convert the electric energy to be electrolyzed into hydrogen energy and store it in the hydrogen storage system of the energy system;

[0055] Wherein, the power generation mode is used to instruct the R-SOC system to use the hydrogen energy in the hydrogen storage system and / or the biomass energy in the biomass energy system in the energy system as energy to be converted, and use the energy to be converted to generate electricity; wherein, the third preset electric energy threshold is not greater than the first preset electric energy threshold.

[0056] The above-mentioned power management method, device, controller and storage medium obtain the current power generated by the new energy system in the energy system; when the current power exceeds the first preset power threshold, or the fluctuation amplitude of the current power exceeds the second preset power threshold, control the reversible solid oxide battery R-SOC system in the energy system to switch to the electrolysis mode; and, when the current power does not exceed the third preset power threshold, control the R-SOC system in the energy system to switch to the power generation mode; wherein the electrolysis mode is used to instruct the R-SOC system to use part of the power that exceeds the first preset power threshold, or the part of the power that exceeds the third preset power threshold as the power to be electrolyzed, and convert the power to be electrolyzed into hydrogen energy and store it in the hydrogen storage system of the energy system; the power generation mode is used to instruct the R-SOC system to use the hydrogen energy in the hydrogen storage system, and / or the biomass energy in the biomass energy system of the energy system as the energy to be converted, and use the energy to be converted to generate electricity; the third preset power threshold is not greater than the first preset power threshold. In the above scheme, when the R-SOC system is in power generation mode, the hydrogen energy in the hydrogen storage system and the biomass energy in the biomass energy system of the energy system can be used as energy to be converted, and the energy to be converted can be used to generate electricity. Even if the hydrogen stored in the hydrogen storage system is insufficient, the biomass energy in the biomass energy system can be used to generate electricity to meet the electricity demand of the electricity user; there is no need to set up larger-scale hydrogen storage equipment and electrolysis equipment, thereby reducing the cost of hydrogen storage equipment and electrolysis equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 A schematic diagram of the structure of an energy system in one embodiment;

[0058] Figure 2 is a flow chart of a power management method in one embodiment;

[0059] Figure 3 A schematic diagram of a process for determining energy to be converted in one embodiment;

[0060] Figure 4 A schematic diagram of a process for determining the electric energy to be electrolyzed in one embodiment;

[0061] Figure 5A A schematic diagram of a process for determining electric energy to be stored and electric energy to be electrolyzed in one embodiment;

[0062] Figure 5B A schematic diagram of a process for determining electric energy to be stored and electric energy to be electrolyzed in another embodiment;

[0063] Figure 6 is a flow chart of another electric energy management method in one embodiment;

[0064] Figure 7 is a structural block diagram of a power management device in one embodiment;

[0065] Figure 8 FIG. 4 is a diagram showing the internal structure of a controller in one embodiment. DETAILED DESCRIPTION

[0066] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0067] The power management method provided in the embodiment of the present application can be applied to Figure 1 In the application scenario shown. Figure 1 The schematic diagram of the structure of an energy system is shown, which includes a reversible solid oxide cell (R-SOC) system, a new energy system, an energy storage battery system, a photothermal system, a biomass energy system, a hydrogen storage system, a water supply system and a controller. The controller is connected to the R-SOC system, the new energy system, the energy storage battery system, the photothermal system, the biomass energy system, the hydrogen storage system and the water supply system respectively, which is not shown in the figure.

[0068] Among them, the new energy system can use wind energy or solar energy to generate electricity to supply power to all electrical equipment and user ends in the energy system. When the generated electricity is in excess, part of it is stored in the energy storage battery system, and the other part is electrolyzed by the R-SOC system and converted into hydrogen and stored in the hydrogen storage system.

[0069] The R-SOC system plays an intermediate energy conversion role. When the new energy system generates excess electricity, it switches to the solid oxide electrolysis cell (SOEC) electrolysis mode to convert the surplus electricity into hydrogen and store it in the hydrogen storage system. When the new energy system generates insufficient electricity and cannot meet user demand, the R-SOC system switches to the solid oxide fuel cell (SOFC) power generation mode, using the hydrogen in the hydrogen storage system or the biogas in the biomass energy system to generate electricity to supplement electricity.

[0070] The energy storage battery system is used to buffer the power fluctuations generated by the new energy system. When the new energy system has a large power fluctuation, the energy storage battery system absorbs the power peaks and valleys through charging and discharging, smoothes the power fluctuations, and protects the system equipment. At the same time, the energy storage battery system can also be used as an independent power source to directly supply power to various electrical equipment.

[0071] The solar thermal system is equipped with a deionized water pump, a steam generator, a solar thermal absorber, an electric heater and a temperature sensor. The special electric heater is located inside the steam generator. When there is sufficient sunlight, the heat absorbed by the solar thermal absorber is used to heat the steam generator to produce steam. The steam can be supplied to the user end for direct use or to the R-SOC system as a raw material for electrolytic hydrogen production. The controller automatically controls the direction of steam delivery according to the heat demand of the user end. The steam flow is controlled by a deionized water pump, and a temperature sensor is set at the outlet of the steam generator. When the temperature sensor monitors that the steam temperature is lower than the set value, the electric heater starts to ensure the steam outlet temperature.

[0072] The biomass energy system is used to ferment biological raw materials into methane gas and store it. The raw materials can be obtained by fermenting kitchen waste and excrement at the user end. The biomass energy system is equipped with two outlet gas interfaces, one connected to the user end and the other connected to the R-SOC system.

[0073] The hydrogen storage system includes a hydrogen booster pump, a hydrogen storage tank, a switch control valve, and a monitoring instrument. In the electrolysis mode, the hydrogen produced by the R-SOC system is pressurized by the hydrogen booster pump and then passed into the hydrogen storage tank for storage; when the R-SOC system switches to the power generation mode and needs hydrogen, the hydrogen booster pump is turned off and the switch control valve is opened to provide hydrogen for the R-SOC system. The monitoring instrument monitors the concentration and pressure of hydrogen and other parameters in real time.

[0074] The water supply system is used to provide deionized water for the entire energy system, including water for the user end, water for the solar thermal system, water for cooling the R-SOC system, etc. The special R-SOC system cooling water can be further introduced into the user end as a heat source after being cooled, heated and heated.

[0075] The controller can monitor and control the entire energy system to ensure the stable operation of the energy system. When the controller detects that the new energy system generates excess electricity, the R-SOC system switches to the SOEC electrolysis mode to produce hydrogen by electrolysis; when the controller detects that the new energy system generates insufficient electricity, the R-SOC system switches to the SOFC power generation mode to supplement electricity. When the controller monitors that the outlet steam temperature of the solar thermal system is lower than the set value, the solar thermal system electric heater is automatically started to ensure that the steam quality meets the requirements. When the R-SOC system is in the SOFC power generation mode, the controller automatically monitors the gas storage capacity in the hydrogen storage system and the biomass energy system, and automatically switches the fuel supply system according to the storage capacity to ensure a stable supply of fuel.

[0076] The controller may be a server or a terminal. The server may be implemented as an independent server or a server cluster composed of multiple servers. The terminal may be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, IoT devices and portable wearable devices. IoT devices may be smart speakers, smart TVs, smart air conditioners, smart car-mounted devices, etc. Portable wearable devices may be smart watches, smart bracelets, head-mounted devices, etc.

[0077] In one embodiment, Figure 2 As shown, a power management method is provided, which is described by taking the method applied to a controller in an energy system as an example, and includes the following steps:

[0078] S201, obtaining the current electric energy generated by the new energy system in the energy system.

[0079] Exemplarily, the controller may detect the current electric energy generated by the new energy system in the energy system, that is, the electric energy generated at the current moment or the current time period.

[0080] S202, when the current electric energy exceeds the first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, control the reversible solid oxide battery R-SOC system in the energy system to switch to the electrolysis mode; and when the current electric energy does not exceed the third preset electric energy threshold, control the R-SOC system in the energy system to switch to the power generation mode.

[0081] Exemplarily, when the current electric energy exceeds the first preset electric energy threshold, which means that the current electric energy is in excess, the R-SOC system in the energy system can be controlled to switch to the electrolysis mode to convert the excess electric energy into hydrogen energy for storage; or when the fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, which means that the current electric energy fluctuation is too large, in order to avoid damage to equipment in the energy system due to excessive electric energy fluctuations, the electric energy exceeding the second preset electric energy threshold can be converted into hydrogen energy for storage; and when the current electric energy does not exceed the third preset electric energy threshold, which means that the electric energy generated by the new energy system cannot meet the electricity demand, the R-SOC system in the energy system can be controlled to switch to the power generation mode, and the stored hydrogen energy or biomass energy can be used to generate electricity to supplement the electric energy.

[0082] Among them, the electrolysis mode is used to instruct the R-SOC system to use part of the electric energy that exceeds the first preset electric energy threshold, or part of the electric energy that exceeds the third preset electric energy threshold as electric energy to be electrolyzed, and convert the electric energy to be electrolyzed into hydrogen energy and store it in the hydrogen storage system of the energy system; the power generation mode is used to instruct the R-SOC system to use the hydrogen energy in the hydrogen storage system and / or the biomass energy in the biomass energy system of the energy system as energy to be converted, and use the energy to be converted to generate electricity; wherein, the third preset electric energy threshold is not greater than the first preset electric energy threshold.

[0083] Exemplarily, the first preset power threshold and the third preset power threshold can be dynamically adjusted according to the power demand of the user in different time periods, and the second preset power threshold can be determined according to the power fluctuation amplitude that the R-SOC system can withstand.

[0084] In the embodiment of the present application, when the R-SOC system is in power generation mode, the hydrogen energy in the hydrogen storage system and the biomass energy in the biomass energy system of the energy system can be used as energy to be converted, and the energy to be converted can be used to generate electricity. Even if the hydrogen stored in the hydrogen storage system is insufficient, the biomass energy in the biomass energy system can be used to generate electricity to meet the electricity demand of the electricity user; there is no need to set up larger-scale hydrogen storage equipment and electrolysis equipment, thereby reducing the cost of the hydrogen storage equipment and electrolysis equipment.

[0085] In some optional implementations, after the R-SOC system switches to the power generation mode, the energy to be converted for power generation by the R-SOC system can be determined based on the remaining hydrogen energy in the hydrogen storage system.

[0086] For example, see Figure 3 , Figure 3 A schematic diagram of a process for determining energy to be converted is provided, which specifically includes the following steps:

[0087] S301, obtaining the current remaining hydrogen energy in the hydrogen storage system.

[0088] Exemplarily, the current remaining hydrogen energy in the hydrogen storage system may be first obtained, and by judging the relationship between the current remaining hydrogen energy and a preset hydrogen energy threshold, it is determined whether the current remaining hydrogen energy is sufficient to determine the energy to be converted.

[0089] S302, when the current remaining hydrogen energy is lower than the preset hydrogen energy threshold, the hydrogen energy in the hydrogen storage system and the biomass energy in the biomass energy system of the energy system are used as energy to be converted; when the current remaining hydrogen energy is not lower than the preset hydrogen energy threshold, the hydrogen energy in the hydrogen storage system is used as energy to be converted.

[0090] Furthermore, when the current remaining hydrogen energy is lower than the preset hydrogen energy threshold, which means that the hydrogen energy in the hydrogen storage system is insufficient, the hydrogen energy in the hydrogen storage system and the biomass energy in the biomass energy system in the energy system can be used as energy to be converted to achieve power generation using hydrogen energy and biomass energy to meet electricity demand.

[0091] When the current remaining hydrogen energy is not lower than the preset hydrogen energy threshold, it means that there is sufficient hydrogen energy in the hydrogen storage system. The hydrogen energy in the hydrogen storage system can be directly used as energy to be converted to realize power generation using hydrogen energy to meet electricity demand.

[0092] In the embodiment of the present application, when the hydrogen energy in the hydrogen storage system is insufficient, the biomass energy in the biomass energy system can be used to replace hydrogen as the energy to be converted for power generation. There is no need to reserve sufficient hydrogen energy, and thus there is no need to set up larger-scale hydrogen storage equipment and electrolysis equipment, thereby reducing the cost of the hydrogen storage equipment and electrolysis equipment.

[0093] It should be noted that due to the instability and intermittent power generation of new energy systems, it is easy to cause damage to the R-SOC system. Therefore, when there is excess electricity generated, part of the electricity can be stored in the energy storage battery system, and the other part can be electrolyzed by the R-SOC system to reduce damage to the R-SOC system.

[0094] For example, see Figure 4 , Figure 4 A schematic flow chart of determining the electric energy to be electrolyzed is provided, which specifically comprises the following steps:

[0095] S401, when the current electric energy exceeds the first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, according to the electric energy carrying upper limit of the R-SOC system, the part of the electric energy exceeding the first preset electric energy threshold is divided into electric energy to be stored and electric energy to be electrolyzed.

[0096] Exemplarily, when the current electric energy exceeds the first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, the upper limit of the electric energy carrying capacity of the R-SOC system can be determined first. The upper limit of the electric energy carrying capacity of the R-SOC system can be understood as the maximum electric energy that the R-SOC system can electrolyze without being damaged by electric energy fluctuations. Then, according to the upper limit of the electric energy carrying capacity of the R-SOC system, part of the electric energy that exceeds the first preset electric energy threshold can be divided into electric energy to be stored and electric energy to be electrolyzed, or part of the electric energy that exceeds the third preset electric energy threshold can be divided into electric energy to be stored and electric energy to be electrolyzed, so that the electric energy to be electrolyzed does not exceed the upper limit of the electric energy carrying capacity, so as to avoid excessive electric energy to be electrolyzed from causing damage to the R-SOC system. Among them, the upper limit of the electric energy carrying capacity can be determined based on empirical data and the performance of the R-SOC system, and is not specifically limited here.

[0097] S402, storing the electric energy to be stored in the energy storage battery system in the energy system; and controlling the R-SOC system in the energy system to switch to the electrolysis mode.

[0098] Furthermore, the electric energy to be stored can be stored in an energy storage battery system in the energy system, and the R-SOC system in the energy system can be controlled to switch to an electrolysis mode to electrolyze the electric energy to be electrolyzed.

[0099] In an embodiment of the present application, according to the energy carrying limit of the R-SOC system, part of the electric energy that exceeds the first preset energy threshold is divided into electric energy to be stored and electric energy to be electrolyzed, so that the electric energy to be electrolyzed does not exceed the energy carrying limit, thereby avoiding damage to the R-SOC system caused by excessive electric energy to be electrolyzed.

[0100] Further, see Figure 5A , Figure 5A A schematic flow chart of determining electric energy to be stored and electric energy to be electrolyzed is provided, which specifically includes the following steps:

[0101] S5011, taking the electric energy corresponding to the current electric energy exceeding the first preset electric energy threshold, the electric energy of the electric energy carrying upper limit of the R-SOC system as the electric energy to be electrolyzed.

[0102] Exemplarily, the electric energy corresponding to the portion of the electric energy exceeding the first preset electric energy threshold value, the electric energy of the electric energy carrying upper limit of the R-SOC system can be used as the electric energy to be electrolyzed. For example, if the electric energy corresponding to the portion of the electric energy exceeding the first preset electric energy threshold value is greater than or equal to the electric energy carrying upper limit, the electric energy corresponding to the portion of the electric energy exceeding the first preset electric energy threshold value, the electric energy of the electric energy carrying upper limit of the R-SOC system can be used as the electric energy to be electrolyzed. If the electric energy corresponding to the portion of the electric energy exceeding the first preset electric energy threshold value is less than the electric energy carrying upper limit, the electric energy corresponding to the portion of the electric energy exceeding the first preset electric energy threshold value can be directly used as the electric energy to be electrolyzed.

[0103] S5012, using the electric energy of the current electric energy that exceeds the first preset electric energy threshold, except the electric energy to be electrolyzed, as the electric energy to be stored.

[0104] Furthermore, when the current electric energy corresponds to a portion of electric energy that exceeds the first preset electric energy threshold and is greater than or equal to the electric energy carrying upper limit, the current electric energy corresponds to a portion of electric energy that exceeds the first preset electric energy threshold, except for the electric energy to be electrolyzed, as electric energy to be stored.

[0105] It should be noted that the execution order of S5011 and S5012 is only an example, and S5012 may be executed first and then S5011, or S5011 and S5012 may be executed simultaneously.

[0106] In the embodiment of the present application, among the part of the electric energy corresponding to the current electric energy that exceeds the first preset electric energy threshold, the electric energy of the upper limit of the electric energy carrying capacity of the R-SOC system is used as the electric energy to be electrolyzed; and among the part of the electric energy corresponding to the current electric energy that exceeds the first preset electric energy threshold, the electric energy other than the electric energy to be electrolyzed is used as the electric energy to be stored, so that the electric energy to be electrolyzed does not exceed the upper limit of the electric energy carrying capacity, thereby avoiding damage to the R-SOC system due to excessive electric energy to be electrolyzed.

[0107] Further, see Figure 5B , Figure 5B Another flow chart for determining the electric energy to be stored and the electric energy to be electrolyzed is provided, which specifically includes the following steps:

[0108] S5021, taking the electric energy of the electric energy carrying upper limit of the R-SOC system among the electric energy whose fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold as the electric energy to be electrolyzed.

[0109] Exemplarily, the electric energy of the R-SOC system's electric energy carrying upper limit portion of the electric energy corresponding to the fluctuation amplitude of the current electric energy exceeding the second preset electric energy threshold can be used as the electric energy to be electrolyzed. For example, if the electric energy of the current electric energy fluctuation amplitude corresponding to the electric energy exceeding the second preset electric energy threshold is greater than or equal to the electric energy carrying upper limit portion, the electric energy of the R-SOC system's electric energy carrying upper limit portion of the electric energy corresponding to the fluctuation amplitude of the current electric energy exceeding the second preset electric energy threshold can be used as the electric energy to be electrolyzed. If the electric energy of the current electric energy fluctuation amplitude corresponding to the electric energy exceeding the second preset electric energy threshold is less than the electric energy carrying upper limit portion, the electric energy of the current electric energy fluctuation amplitude corresponding to the electric energy exceeding the second preset electric energy threshold can be directly used as the electric energy to be electrolyzed.

[0110] S5022, the electric energy except the electric energy to be electrolyzed in the part of the electric energy whose fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold value is used as the electric energy to be stored.

[0111] Furthermore, in the case that the fluctuation amplitude of the current electric energy corresponds to a portion of the electric energy that exceeds the second preset electric energy threshold that is greater than or equal to the electric energy carrying upper limit, the electric energy other than the electric energy to be electrolyzed in the portion of the electric energy that exceeds the second preset electric energy threshold that corresponds to the fluctuation amplitude of the current electric energy can be used as the electric energy to be stored.

[0112] It should be noted that the execution order of S5021 and S5022 is only an example, and S5022 may be executed first and then S5021, or S5021 and S5022 may be executed simultaneously.

[0113] In the embodiment of the present application, among the part of the electric energy whose fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, the electric energy of the upper limit of the electric energy carrying capacity of the R-SOC system is used as the electric energy to be electrolyzed; and, among the part of the electric energy whose fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, the electric energy other than the electric energy to be electrolyzed is used as the electric energy to be stored, so that the electric energy to be electrolyzed does not exceed the upper limit of the electric energy carrying capacity, thereby avoiding damage to the R-SOC system due to excessive electric energy to be electrolyzed.

[0114] It should be noted that the process of the R-SOC system using the energy to be converted to generate electricity is actually the process of electrolyzing water. Therefore, the photothermal system in the energy system can be controlled to provide water vapor for the R-SOC system when the R-SOC system uses the energy to be converted to generate electricity; wherein, water vapor is the electrolysis raw material when the R-SOC system uses the energy to be converted to perform electrolysis.

[0115] For example, the water supply system in the energy system can provide water to the solar thermal system, and the solar thermal absorber in the solar thermal system absorbs solar energy to heat the steam generator to generate steam. The solar thermal system can also provide hot water to the user end.

[0116] In the embodiment of the present application, the solar thermal system can absorb solar energy to heat the water source to provide water vapor to the R-SOC system, thereby utilizing solar clean energy and improving the utilization rate of clean energy.

[0117] In some optional implementations, the water supply system in the energy system can also be controlled to provide cooling water for the R-SOC system to cool the gas output by the R-SOC system; and the cooling water after cooling the gas output by the R-SOC system can be transmitted to the user end of the energy system and used as a heat source, thereby improving the thermal efficiency of the energy system.

[0118] For example, in the electrolysis mode, the high-temperature hydrogen generated on the cathode side needs to be cooled and then pressurized and stored by a booster pump; the oxygen-rich gas generated on the anode side needs to be cooled and then discharged or stored for use; thus, in the electrolysis mode, the water supply system provides cooling water to the R-SOC system to cool the hydrogen and oxygen. In the power generation mode, the water supply system provides cooling water to the R-SOC system to cool the generated water vapor or carbon dioxide.

[0119] In the embodiment of the present application, the thermal efficiency of the energy system can be improved by transmitting cooling water used to cool the gas output by the R-SOC system to the user end of the energy system.

[0120] In some optional implementations, see Figure 6 , Figure 6 A flow chart of another power management method is provided, which specifically includes the following steps:

[0121] S601, obtaining the current electric energy generated by the new energy system in the energy system.

[0122] S602, when the current electric energy exceeds the first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, according to the electric energy carrying upper limit of the R-SOC system, the part of the electric energy exceeding the first preset electric energy threshold, or the part of the electric energy exceeding the second preset electric energy threshold is divided into electric energy to be stored and electric energy to be electrolyzed.

[0123] S603, storing the electric energy to be stored in the energy storage battery system in the energy system; and controlling the R-SOC system in the energy system to switch to the electrolysis mode, and controlling the R-SOC system to convert the electric energy to be electrolyzed into hydrogen energy and store it in the hydrogen storage system of the energy system.

[0124] S604: When the current electric energy does not exceed the third preset electric energy threshold, obtain the current remaining hydrogen energy in the hydrogen storage system.

[0125] S605, when the current remaining hydrogen energy is lower than the preset hydrogen energy threshold, the hydrogen energy in the hydrogen storage system and the biomass energy in the biomass energy system in the energy system are used as energy to be converted; and when the current remaining hydrogen energy is not lower than the preset hydrogen energy threshold, the hydrogen energy in the hydrogen storage system is used as energy to be converted.

[0126] S606, controlling the R-SOC system in the energy system to switch to a power generation mode, so that the R-SOC system uses the energy to be converted to generate electricity.

[0127] S607, controlling the solar thermal system in the energy system to provide water vapor to the R-SOC system when the R-SOC system uses the energy to be converted to generate electricity.

[0128] The specific process of S601 to S607 can refer to the description of the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here. The execution order is only an exemplary description and is not used to limit the execution order. Other changes in the execution order are also within the protection scope of the embodiment of this application.

[0129] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0130] Based on the same inventive concept, the embodiment of the present application also provides an electric energy management device for implementing the electric energy management method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more embodiments of the electric energy management device provided below can refer to the limitations of the electric energy management method above, and will not be repeated here.

[0131] In one embodiment, Figure 7 As shown, a power management device is provided, which is configured in a controller in an energy system, including:

[0132] An acquisition module 10 is used to acquire the current electric energy generated by the new energy system in the energy system;

[0133] The control module 20 is used to control the reversible solid oxide battery R-SOC system in the energy system to switch to the electrolysis mode when the current electric energy exceeds the first preset electric energy threshold or the fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold; and to control the R-SOC system in the energy system to switch to the power generation mode when the current electric energy does not exceed the third preset electric energy threshold;

[0134] The electrolysis mode is used to instruct the R-SOC system to use part of the electric energy exceeding the first preset electric energy threshold, or part of the electric energy exceeding the third preset electric energy threshold as electric energy to be electrolyzed, and convert the electric energy to be electrolyzed into hydrogen energy and store it in the hydrogen storage system of the energy system;

[0135] Among them, the power generation mode is used to instruct the R-SOC system to use the hydrogen energy in the hydrogen storage system and / or the biomass energy in the biomass energy system in the energy system as the energy to be converted, and use the energy to be converted to generate electricity; wherein, the third preset power threshold is not greater than the first preset power threshold.

[0136] Exemplarily, when the current electric energy exceeds the first preset electric energy threshold, the R-SOC system is started or switched to the electrolysis mode hot standby state, and when the duration is less than T1, the energy storage battery system consumes part of the electric energy exceeding the first preset electric energy threshold; when the duration is greater than T1, the R-SOC system performs electrolysis. The duration T1 is determined by the electrolysis hot standby preparation time of the R-SOC system.

[0137] When the current power is lower than the third preset power threshold, the R-SOC system is started or switched to the hot standby state of the power generation mode; when the duration is less than T2, the power is supplemented by the energy storage battery system, and when the duration is greater than T2, the power generation mode of the R-SOC system is switched. The duration T2 is determined by the hot standby preparation time of the R-SOC system.

[0138] The above-mentioned power management device, when the R-SOC system is in power generation mode, can use the hydrogen energy in the hydrogen storage system and the biomass energy in the biomass energy system in the energy system as energy to be converted, and use the energy to be converted to generate electricity. Even if the hydrogen stored in the hydrogen storage system is insufficient, the biomass energy in the biomass energy system can be used to generate electricity to meet the electricity demand of the electricity user; there is no need to set up larger-scale hydrogen storage equipment and electrolysis equipment, thereby reducing the cost of hydrogen storage equipment and electrolysis equipment.

[0139] In one embodiment, the device further includes a determination module, which is used to: after controlling the R-SOC system in the energy system to switch to the power generation mode when the current power does not exceed the third preset power threshold;

[0140] The current remaining hydrogen energy in the hydrogen storage system is obtained; when the current remaining hydrogen energy is lower than a preset hydrogen energy threshold, the hydrogen energy in the hydrogen storage system and the biomass energy in the biomass energy system of the energy system are used as energy to be converted; when the current remaining hydrogen energy is not lower than the preset hydrogen energy threshold, the hydrogen energy in the hydrogen storage system is used as energy to be converted.

[0141] In one embodiment, the control module 20 specifically includes:

[0142] A division unit, configured to divide a portion of the electric energy exceeding the first preset electric energy threshold or the portion of the electric energy exceeding the second preset electric energy threshold into electric energy to be stored and electric energy to be electrolyzed according to the electric energy carrying upper limit of the R-SOC system when the current electric energy exceeds the first preset electric energy threshold or the fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold;

[0143] The storage unit is used to store the electric energy to be stored in the energy storage battery system in the energy system; and to control the R-SOC system in the energy system to switch to the electrolysis mode.

[0144] In one embodiment, the partitioning unit is specifically used for:

[0145] Among the part of the electric energy corresponding to the current electric energy that exceeds the first preset electric energy threshold, the electric energy of the electric energy carrying upper limit of the R-SOC system is used as the electric energy to be electrolyzed; and, among the part of the electric energy corresponding to the current electric energy that exceeds the first preset electric energy threshold, the electric energy other than the electric energy to be electrolyzed is used as the electric energy to be stored.

[0146] In one embodiment, the partitioning unit is specifically used for:

[0147] Among the part of the electric energy whose fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, the electric energy of the electric energy carrying upper limit of the R-SOC system is used as the electric energy to be electrolyzed; and, among the part of the electric energy whose fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, the electric energy other than the electric energy to be electrolyzed is used as the electric energy to be stored.

[0148] In one embodiment, when the current electric energy exceeds the first preset electric energy threshold, after the reversible solid oxide battery R-SOC system in the control energy system is switched to the electrolysis mode, the control module 20 is further used to:

[0149] The photothermal system in the control energy system provides water vapor to the R-SOC system when the R-SOC system uses the energy to be converted to generate electricity; wherein the water vapor is the electrolysis raw material when the R-SOC system uses the energy to be converted to perform electrolysis.

[0150] In one embodiment, the control module 20 is further configured to:

[0151] Control the water supply system in the energy system to provide cooling water for the R-SOC system to cool the gas output by the R-SOC system; transmit the cooling water after cooling the gas output by the R-SOC system to the user end in the energy system.

[0152] Each module in the above power management device can be implemented in whole or in part by software, hardware or a combination thereof. Each module can be embedded in or independent of the processor in the controller in hardware form, or can be stored in the memory in the controller in software form, so that the processor can call and execute the corresponding operations of each module.

[0153] In one embodiment, a controller is provided. The controller may be a server, and its internal structure diagram may be as follows: Figure 8 As shown. The controller includes a processor, a memory and a network interface connected through a system bus. Among them, the processor of the controller is used to provide computing and control capabilities. The memory of the controller includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the controller is used to store energy system data. The network interface of the controller is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, an electric energy management method is implemented.

[0154] Those skilled in the art will understand that Figure 8 The structure shown in the figure is merely a block diagram of a partial structure related to the scheme of the present application, and does not constitute a limitation on the controller to which the scheme of the present application is applied. The specific controller may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0155] In one embodiment, a controller is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0156] Obtain the current electric energy generated by the new energy system in the energy system;

[0157] When the current electric energy exceeds a first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds a second preset electric energy threshold, controlling the reversible solid oxide battery R-SOC system in the energy system to switch to an electrolysis mode; and,

[0158] When the current electric energy does not exceed the third preset electric energy threshold, controlling the R-SOC system in the energy system to switch to the power generation mode;

[0159] The electrolysis mode is used to instruct the R-SOC system to use part of the electric energy exceeding the first preset electric energy threshold, or part of the electric energy exceeding the third preset electric energy threshold as electric energy to be electrolyzed, and convert the electric energy to be electrolyzed into hydrogen energy and store it in the hydrogen storage system of the energy system;

[0160] Among them, the power generation mode is used to instruct the R-SOC system to use the hydrogen energy in the hydrogen storage system and / or the biomass energy in the biomass energy system in the energy system as the energy to be converted, and use the energy to be converted to generate electricity; wherein, the third preset power threshold is not greater than the first preset power threshold.

[0161] In one embodiment, when the current electric energy does not exceed the third preset electric energy threshold, after the R-SOC system in the energy system is controlled to switch to the power generation mode, the processor further implements the following steps when executing the computer program:

[0162] The current remaining hydrogen energy in the hydrogen storage system is obtained; when the current remaining hydrogen energy is lower than a preset hydrogen energy threshold, the hydrogen energy in the hydrogen storage system and the biomass energy in the biomass energy system of the energy system are used as energy to be converted; when the current remaining hydrogen energy is not lower than the preset hydrogen energy threshold, the hydrogen energy in the hydrogen storage system is used as energy to be converted.

[0163] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0164] When the current electric energy exceeds the first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, according to the electric energy carrying upper limit of the R-SOC system, the part of the electric energy exceeding the first preset electric energy threshold, or the part of the electric energy exceeding the second preset electric energy threshold is divided into electric energy to be stored and electric energy to be electrolyzed; the electric energy to be stored is stored in the energy storage battery system in the energy system; and the R-SOC system in the energy system is controlled to switch to the electrolysis mode.

[0165] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0166] Among the part of the electric energy corresponding to the current electric energy that exceeds the first preset electric energy threshold, the electric energy of the electric energy carrying upper limit of the R-SOC system is used as the electric energy to be electrolyzed; and, among the part of the electric energy corresponding to the current electric energy that exceeds the first preset electric energy threshold, the electric energy other than the electric energy to be electrolyzed is used as the electric energy to be stored.

[0167] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0168] Among the part of the electric energy whose fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, the electric energy of the electric energy carrying upper limit of the R-SOC system is used as the electric energy to be electrolyzed; and, among the part of the electric energy whose fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, the electric energy other than the electric energy to be electrolyzed is used as the electric energy to be stored.

[0169] In one embodiment, when the current electric energy exceeds the first preset electric energy threshold, after the reversible solid oxide battery R-SOC system in the energy system is controlled to switch to the electrolysis mode, the processor further implements the following steps when executing the computer program:

[0170] The photothermal system in the control energy system provides water vapor to the R-SOC system when the R-SOC system uses the energy to be converted to generate electricity; wherein the water vapor is the electrolysis raw material when the R-SOC system uses the energy to be converted to perform electrolysis.

[0171] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0172] Control the water supply system in the energy system to provide cooling water for the R-SOC system to cool the gas output by the R-SOC system; transmit the cooling water after cooling the gas output by the R-SOC system to the user end in the energy system.

[0173] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0174] Obtain the current electric energy generated by the new energy system in the energy system;

[0175] When the current electric energy exceeds a first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds a second preset electric energy threshold, controlling the reversible solid oxide battery R-SOC system in the energy system to switch to an electrolysis mode; and,

[0176] When the current electric energy does not exceed the third preset electric energy threshold, controlling the R-SOC system in the energy system to switch to the power generation mode;

[0177] The electrolysis mode is used to instruct the R-SOC system to use part of the electric energy exceeding the first preset electric energy threshold, or part of the electric energy exceeding the third preset electric energy threshold as electric energy to be electrolyzed, and convert the electric energy to be electrolyzed into hydrogen energy and store it in the hydrogen storage system of the energy system;

[0178] Among them, the power generation mode is used to instruct the R-SOC system to use the hydrogen energy in the hydrogen storage system and / or the biomass energy in the biomass energy system in the energy system as the energy to be converted, and use the energy to be converted to generate electricity; wherein, the third preset power threshold is not greater than the first preset power threshold.

[0179] In one embodiment, when the current electric energy does not exceed the third preset electric energy threshold, after the R-SOC system in the energy system is controlled to switch to the power generation mode, the computer program further implements the following steps when executed by the processor:

[0180] The current remaining hydrogen energy in the hydrogen storage system is obtained; when the current remaining hydrogen energy is lower than a preset hydrogen energy threshold, the hydrogen energy in the hydrogen storage system and the biomass energy in the biomass energy system of the energy system are used as energy to be converted; when the current remaining hydrogen energy is not lower than the preset hydrogen energy threshold, the hydrogen energy in the hydrogen storage system is used as energy to be converted.

[0181] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0182] When the current electric energy exceeds the first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, according to the electric energy carrying upper limit of the R-SOC system, the part of the electric energy exceeding the first preset electric energy threshold, or the part of the electric energy exceeding the second preset electric energy threshold is divided into electric energy to be stored and electric energy to be electrolyzed; the electric energy to be stored is stored in the energy storage battery system in the energy system; and the R-SOC system in the energy system is controlled to switch to the electrolysis mode.

[0183] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0184] Among the part of the electric energy corresponding to the current electric energy that exceeds the first preset electric energy threshold, the electric energy of the electric energy carrying upper limit of the R-SOC system is used as the electric energy to be electrolyzed; and, among the part of the electric energy corresponding to the current electric energy that exceeds the first preset electric energy threshold, the electric energy other than the electric energy to be electrolyzed is used as the electric energy to be stored.

[0185] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0186] Among the part of the electric energy whose fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, the electric energy of the electric energy carrying upper limit of the R-SOC system is used as the electric energy to be electrolyzed; and, among the part of the electric energy whose fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, the electric energy other than the electric energy to be electrolyzed is used as the electric energy to be stored.

[0187] In one embodiment, when the current electric energy exceeds the first preset electric energy threshold, after the reversible solid oxide battery R-SOC system in the energy system is controlled to switch to the electrolysis mode, the computer program further implements the following steps when executed by the processor:

[0188] The photothermal system in the control energy system provides water vapor to the R-SOC system when the R-SOC system uses the energy to be converted to generate electricity; wherein the water vapor is the electrolysis raw material when the R-SOC system uses the energy to be converted to perform electrolysis.

[0189] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0190] Control the water supply system in the energy system to provide cooling water for the R-SOC system to cool the gas output by the R-SOC system; transmit the cooling water after cooling the gas output by the R-SOC system to the user end in the energy system.

[0191] In one embodiment, a computer program product is provided, including a computer program, which implements the steps of the power management method described in any of the above embodiments when executed by a processor.

[0192] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0193] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0194] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for managing electric energy, characterized in that: The method is applied to a controller in an energy system, and the method comprises: Acquire current electric energy generated by a new energy system in the energy system; When the current electric energy exceeds a first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds a second preset electric energy threshold, controlling the reversible solid oxide battery R-SOC system in the energy system to switch to an electrolysis mode; and, When the current electric energy does not exceed a third preset electric energy threshold, controlling the R-SOC system in the energy system to switch to a power generation mode; The electrolysis mode is used to instruct the R-SOC system to use part of the electric energy exceeding the first preset electric energy threshold, or part of the electric energy exceeding the third preset electric energy threshold as electric energy to be electrolyzed, and convert the electric energy to be electrolyzed into hydrogen energy and store it in the hydrogen storage system of the energy system; Wherein, the power generation mode is used to instruct the R-SOC system to use the hydrogen energy in the hydrogen storage system and / or the biomass energy in the biomass energy system in the energy system as energy to be converted, and use the energy to be converted to generate electricity; wherein, the third preset electric energy threshold is not greater than the first preset electric energy threshold.

2. The method according to claim 1, characterized in that: After controlling the R-SOC system in the energy system to switch to the power generation mode when the current electric energy does not exceed the third preset electric energy threshold, the method further includes: Obtaining the current remaining hydrogen energy in the hydrogen storage system; When the current remaining hydrogen energy is lower than a preset hydrogen energy threshold, the hydrogen energy in the hydrogen storage system and the biomass energy in the biomass energy system in the energy system are used as the energy to be converted; When the current remaining hydrogen energy is not lower than a preset hydrogen energy threshold, the hydrogen energy in the hydrogen storage system is used as the energy to be converted.

3. The method according to claim 1 or 2, characterized in that: When the current electric energy exceeds the first preset electric energy threshold, or the fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold, controlling the reversible solid oxide battery R-SOC system in the energy system to switch to the electrolysis mode includes: When the current electric energy exceeds a first preset electric energy threshold, or when the fluctuation amplitude of the current electric energy exceeds a second preset electric energy threshold, according to the electric energy carrying upper limit of the R-SOC system, the electric energy exceeding the first preset electric energy threshold, or the electric energy exceeding the second preset electric energy threshold, is divided into electric energy to be stored and the electric energy to be electrolyzed; storing the electric energy to be stored in the energy storage battery system in the energy system; and, The R-SOC system in the energy system is controlled to switch to an electrolysis mode.

4. The method according to claim 3, characterized in that: According to the power carrying limit of the R-SOC system, the part of the power exceeding the first preset power threshold is divided into the power to be stored and the power to be electrolyzed, including: Among the electric energy corresponding to the current electric energy exceeding the first preset electric energy threshold, the electric energy of the electric energy carrying upper limit of the R-SOC system is used as the electric energy to be electrolyzed; and The electric energy other than the electric energy to be electrolyzed among the electric energy corresponding to the current electric energy and exceeding the first preset electric energy threshold is used as the electric energy to be stored.

5. The method according to claim 3, characterized in that: According to the power carrying upper limit of the R-SOC system, the part of the power exceeding the second preset power threshold is divided into the power to be stored and the power to be electrolyzed, including: The electric energy of the electric energy carrying upper limit of the R-SOC system in the electric energy corresponding to the fluctuation amplitude of the current electric energy exceeding the second preset electric energy threshold is used as the electric energy to be electrolyzed; and The electric energy other than the electric energy to be electrolyzed in the part of the electric energy whose fluctuation amplitude of the current electric energy exceeds the second preset electric energy threshold value is used as the electric energy to be stored.

6. The method according to claim 1 or 2, characterized in that: After controlling the reversible solid oxide battery R-SOC system in the energy system to switch to the electrolysis mode when the current electric energy exceeds the first preset electric energy threshold, the method further includes: Controlling the photothermal system in the energy system to provide water vapor to the R-SOC system during the process of the R-SOC system using the energy to be converted to generate electricity; Among them, the water vapor is the electrolysis raw material in the electrolysis process of the R-SOC system using the energy to be converted.

7. The method according to claim 1 or 2, characterized in that: The method further comprises: Controlling the water supply system in the energy system to provide cooling water for the R-SOC system to cool the gas output by the R-SOC system; The cooling water used to cool the gas output by the R-SOC system is transmitted to the user end of the energy system.

8. An electric energy management device, characterized in that: The device is configured in a controller in an energy system, and the device comprises: An acquisition module, used for acquiring current electric energy generated by a new energy system in the energy system; A first control module, used for controlling the reversible solid oxide battery R-SOC system in the energy system to switch to an electrolysis mode when the current electric energy exceeds a first preset electric energy threshold or the fluctuation amplitude of the current electric energy exceeds a second preset electric energy threshold; and used for controlling the R-SOC system in the energy system to switch to a power generation mode when the current electric energy does not exceed a third preset electric energy threshold; The electrolysis mode is used to instruct the R-SOC system to use part of the electric energy exceeding the first preset electric energy threshold, or part of the electric energy exceeding the third preset electric energy threshold as electric energy to be electrolyzed, and convert the electric energy to be electrolyzed into hydrogen energy and store it in the hydrogen storage system of the energy system; Wherein, the power generation mode is used to instruct the R-SOC system to use the hydrogen energy in the hydrogen storage system and / or the biomass energy in the biomass energy system in the energy system as energy to be converted, and use the energy to be converted to generate electricity; wherein, the third preset electric energy threshold is not greater than the first preset electric energy threshold.

9. A controller, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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